Physocypria kraepelini G. W. Müller 1903

Ma, Shunxin & Yu, Na, 2018, Freshwater ostracods (Crustacea) from Tiantong National Forest Park and Dongqian Lake, eastern China, with descriptions of two new species, Journal of Natural History 52 (27 - 28), pp. 1825-1868 : 1840-1841

Physocypria kraepelini G. W. Müller 1903

( Figure 7d )

Physocypria kraepelini sp. nov. G. W. Müller, 1903: 165, figs. 1–7.

C ypria kraepelini comb. nov. Karanovic, 2011: 13.

Material examined

One female (ECNU20140907/TT12) and one male (ECNU20140907/TT11) dissected.

Dimensions

(Female, n = 3) Length, 0.53–0.60 mm; height, 0.40–0.48 mm. (Male, n = 2) Length, 0.49– 0.55 mm; height, 0.35–0.40 mm.

Brief description

Female, in lateral view, LV overlapping RV both anteriorly and posteriorly. RV with small denticles along antero-ventral and postero-ventral margins. Natatory setae of A2 exceeding the tips of terminal claws by two-thirds of their total length. L6 five-segmented, basal seta missing; seta e long, reaching to end of terminal segment. Claw Gp on UR equalling threequarters length of claw Ga. Seta Sp slightly shorter than claw Gp. Seta Sa equalling onequarter length of claw Ga. UR attachment with branches.

Male Right palp of L5 finger-like, stronger than the left. Zenker organ with seven rows of chitinized rosettes. Hp with slender lobes a and b. Lobes a and b equally long.

Distribution

This species has been reported form the Nearctic, Oriental and Palaearctic regions ( Tressler 1959; Meisch 2000; Yu et al. 2010). In China, this species is a common ostracod in lakes and has been reported from Jiangsu ( Yu et al. 2005), Yunnan ( Yu et al. 2010), Guizhou ( Kong et al. 2013), Beijing ( Zhai and Zhao 2014) and Shanghai ( Yao et al. 2016).

Figures

Figure 7. (a–d) Schellencandona dui sp. nov. Female. (a) ECNU20160827/TT7601, dorsal view; (b) ECNU20160827/TT76, internal view of RV; (c) ECNU20160827/TT76, internal view of LV; (d) ECNU20160827/TT7602, external view of LV. (e) Physocypria kraepelini (G. W. Müller 1903). Female. (e) ECNU20140907/TT12, external view of RV. Scale bars: 100 μm.